Carton



Fan, 3 1956 w. P. FRANKENSTEIN CARTON 4 She'ets-Sheet l Filed Aug. 20, 1945 INVEN TOR. -WILURM P fivmvkmsrsm Jam. 3%, 11950 w. P. FRANKENsTEaN CARTON .4 Sheets-Sheet 2 Filed Aug. 20, 1945 ZN VEN TOR. Wu; mm I? FRAME/v STEIN Ana/ye 3M. 3950 w. P. FRANKENSTEMNII 2,493,189

CARTON 4 Sheets-Sheet 3 Filed Aug. 20, 1945 I INVEN TOR. W1: L IA M P FMNKEA/STE/N Patented Jan. 3, 1950 UNITED STATES PATENT orrlca V CARTON William P. Frankenstein, Cincinnati, Ohio Application August 20, 1945, Serial No. 611,566

Claims.

This invention relates .to improvements in cartons and particularly to improvements in knocked-down cartons, that is, cartons cut from a single blank and folded requiring but an unfolding of the blank to set up the carton for use.

The carton of the present invention is an improvement on the cartons such as disclosed in applicants prior patent Re. 21,158 and on applicants pending application Serial No. 403,376,

filed July 21, 1941, now Patent No. 2,397,934.

An object of this invention is the provision of a knocked-down carton or box embodying an improved construction particularl of the hollow side wall type.

.Another object of this invention is the provision of an improved construction in a knockeddown carton for providing a step or shoulder intermediate the height of. the side wall whether the said step or shoulder is placed interiorly or exteriorly of the wall.

Another object of this invention is the provision of a carton of the hollow wall type in which the fold or score lines of the carton may be broken prior to the setting up of the same and which score breaking may be done by the user instead of the manufacturer as was the case with the few prior constructions in which the said scores or folds were broken.

Another object of this invention is the provision in a carton of the class indentified of an improved end wall construction wherein said end wall is hollow and provided with vertical and lateral reinforcements of material rigidity over prior constructions.

Another object of this invention is the provision of an improved carton unit consisting of a carton proper and. lid or cover wherein the lid is located in position after being placed.

It is also an object of this invention to generally improve the construction of cartons or boxes of the hollow or spaced apart wall type.

other objects and advantages of the present invention should be readily apparent by reference to the following specification considered in conjunction with the accompanying drawings forming apart thereof and it is to be understood that any modifications may be made in the exact structural details there shown and described, within the scope of the appended claims, without departing from or exceeding the spirit of the invention.

In the drawings:

Fig. 1 is an extended plan view of a blank for forming a carton of this invention.

Fig. 2 is a perspective view of a carton having one end fully erected and the other end in the process of erection and made from the blank 01 Fig. 1.

Fig. 3 is a transverse sectional view through the blank as shipped to the user.

Figs. 4, 5 and 6 are each fragmentary sectional views through the end wall of the carton of Fig. 2 and respectively taken on lines 4-4, 5-5, and 6-8 on said Fig. 2.

Fig. 7 is a view similar to Fig. 1 showing a modification in the blank for erecting a carton of modified form.

Fig. 8 is a perspective view of a carton partially erected and made from the blank of Fig. 7.

Fig. 9 is a view similar to Fig. 3 and is a transverse view of the blank of Fig. 7 in the form as shipped to the user.

Fig. 10 is an extended plan view of a half blank illustrating modifications from which a further form of the invention in a modified carton may be provided.

Fig. 11 is a perspective view partially assembled of the modified carton erected from the blank of Fig. 10.

Fig. 12 is a. transverse sectional view through the end wall of Fig. 11 showing the cover of Fig. 11 mounted in position and taken on line l2-l2 on said Fig. 11.

Fig. 13 is an extended plan view of a blank from which the cover as employed with the carton of Fig. 11 is formed.

Fig. 14 is a perspective view of the cover set up from the blank of Fig. 13.

Fig. 15 is an extended plan view of a blank for forming a; further modification of the invention.

Fig. 16 is a perspective view of a partially erected carton erected from the blank of Fig. 15.

Throughout the several views of the drawings similar reference characters are employed to denote the same or similar parts.

Each of the several cartons disclosed in' the drawings are formed from a single blank each of which is modified to produce its modification" of the carton and which cartons are basically the same. The common basis for the several cartons of the present invention consists in each having a bottom or base member from the four sides of which extend walls each formed of an inner and an outer member. In each carton two of the opposite walls, generally referredto as side walls, have either for a portion of their height or else the entire height, spaced apart inner and outer members with a top member atthe upper end of the hollow portions of the walls.

Specifically and referring to Figs. 1 to 6 inclusive, the blank comprises a rectangular base portion bound by score or fold lines 26, 21, 28 and 29. The score or fold lines 26 and 28 are of greater length than the score lines 21 and 29, and in accordance with usual practice will be referred to as the sides of the carton although the remaining lines may be the said sides since the term sides is generally reserved for the longer of the bounding walls.

The score or fold lines 26' and 28 respectively hinge connectedly to the base 25 similar extensions 30 and 3| and since these extensions are substantially identical only one of them will be described in detail. Accordingly, extension 30 is provided with a plurality of score or fold lines 32, 33, 34 and 35 which divide the extensions between the fold line 26 and end of the blank into panels 36, 31, 38, 39 and 40. The panel 36 forms in the erected carton the outer wall member for the side walls and has its ends defined by score or fold lines 4| and 42 which hingedly connect therewith corner pieces 43 and 44. The panel 3'! forms the top wall member and has its ends defined by cut lines 45 and 46 and the said top wall panel 31 in the erected carton lies parallel with the base 25. The panel 38 forms the inner wall member of the complete wall and has its ends defined by score or fold lines 41 and 48, and the said panel 38 is provided near its ends 41 and 48 with elongated apertures 49 and 58 cooperating, as will later be made clear, with end wall locating tabs for securing the walls in erected positions. The panel 39 is of substantially the same width and length as the panel 31 having its ends defined by cut lines 5| and 52 and this panel constitutes the bottom of the hollow side walls. The panel 40 is a glue flap of a length and a width substantially equal to that of the outer wall member 36 and to which it is attached by suitable glue or adhesive such as 53 illustrated as carried by the inner surface of the outer wall member 36. The ends of the glue flap 48 are defined by score or fold lines 54 and 55.

The score or fold lines 4|, 41 and 54 at one end of the wall members and glue flap are in alignment with the base member score or fold line 21 and the score or fold lines 42, 48 and 55 at the other ends of the wall members and glue flap are in alignment with the base score or fold line 29. The glue flap 48 has through its end score or fold lines 54 and 55 hingedly connected therewith end wall vertical braces 56 and 5'! which lie in the erected carton adjacent the outer end wall member. The inner wall member panel 38 through its ends scores 41 and 48 has hingedly connected therewith end wall lateral and vertical braces 58 and 59. Said braces 58 and 59 have their other ends defined by score or fold lines 60 and 6| and act as hinge members for connecting thereto end Wall vertical braces 62 and 63. The said end wall vertical braces 56 and 62, and 51 and 63 have hingedly connected between them end wall lateral braces 64 and 65 through score or fold lines which are in alignment with score or fold lines 34 and 35. Similar end wall transverse braces 66 and 61 are located between vertical braces 62 and 63 and their adjacent corner members 43 and 44 being separated by hinge or fold lines in alignment with an extension of score or fold lines 42 and 43.

The corner pieces 43 and 44 are each provided with a diagonal fold or score line 68 and 69 and form, as will later be made clear, a bellows corner between the said side wall outer members and end wall outer members. As will be noted the portion of each corner piece 43 and 44 between its respective diagonal fold line 68 and 69 and the side wall outer member is provided with adhesive which engages increasing portion of the end wall vertical braces 56 and 51.

The base panel 25 has hingedly connected to its ends through the score or fold lines 21 and 29 similar extensions I0 and II which form hollow end walls and since said extensions are substantially identical it is deemed sufilcient if but one of them be described. Accordingly, extension 18 is provided with a plurality of score or fold lines 12, (113 and 14, thereby providing be-- tween the score or fold line 29 and the end of the extension l8 panels l5, l6, l8 and 19.

The panel 15 is of a length equal to the width of the base blank and has its ends defined by score or fold lines and 8| which are in alignment with the base scores 26 and 2B and said score or fold lines 88 and 8| hingedly connect to the said panel 15 the corner pieces 44. The panel 16 has its ends defined by contours 82 and 83 for reducing the width from a size equal to the distance of the carton across its outer wall members to the distance of said carton between its inner wall members and the panel 76 forms the top wall member for the hollow end wall. The panel 18 in the erected carton forms the inner end wall member and is of a length substantially equal to the space between the said carton inner wall members, the panel I8 has projecting near its outer ends lugs 84 and 85 which are adapted to enter the elongated apertures 49 and 50 for locking the carton walls in their erected positions.

In the manufacture of the carton a blank as just described is provided cut to a contour as illustrated in Fig. 1 and with adhesive thereon as illustrated at 53. The carton blank is then folded along the score or fold line 34 thereby bringing the glue flap 48 and bottom side wall panel 39 into face contact with top wall panel 31 and inner wall member 38. The blank is then further folded on the score or fold line 32 thereby bringing the glue flap 48 and adjacent portions of braces 56 and 51 into engagement with the adhesive 53 of outer wall member 36 and corner pieces 43 and 44. In other words both side wall extensions 38 and 3| are now folded to the position in which the extension 3| is illustrated. A transverse cross section of this folded flap is as illustrated in Fig. 3 and it is in this position that the blank is shipped to the user.

It should be noted that the side wall bottom panels 39 are not secured to the carton bottom or base member 25 but are free thereof and that the glue flap 4!] is the only securing factor of the side walls.

When the user desires to utilize the carton as for the reception of merchandise to be shipped or displayed therein, he need only raise the folded side wall flaps from their outwardly extending positions to a position normal to or vertical of the carton base. In the event that difilculty is encountered in breaking the scores so that the inner and outer wall members and top and bottom wall members take their proper position of being normal to one another, the said scores may be broken prior to the set up of the carton. This is illustrated in phantom lines at 86 and 86 in Fig. 3. In other words while the blank is still in the extended position the bottom Wall member may be lifted and swung outwardly thereby raising the inner wall member from its flattened position and outwardly swinging the top wall mems w I ber. With the said side wall members in the position of Fig. 3 they may be swung to be normal to the carton base or bottom. I

With the side wall members in their erected position as illustrated in Fig.1 2 the end wall braces may now be swung to be transverse of the bottom member or panel 25 .as illustrated in Figs. 4 and 5. Due to the connection of a portion of each bellows corner to the. end wall vertical brace member 01, the shifting of the said braces will cause an upward swinging of the end wall outer member or panel I5 so that when the said braces are in their transverse position the end wall extension is vertical or normal to the bottom or base member 21- The remaining panels of the end wall extension may now be folded normal to one another thereby enclosing the braces and the end wall members locked by engagement of the lugs It and I! in the elongated apertures 48 and 50.

It will be noted particularlyfrom Figs. 4, 5 and 6 that the end wall braces are box-like in cross section for vertically and laterally spacing and bracing the end wall inner and outer members. At the same time the end wall inner member is prevented from displacement due to pressure from the interior of the carton. It will further be noted that there has been provided a carton in which the scores may be pre-broken resulting in greater ease of assembly and less pressure required to assemble the carton. It should also be noted that by the present construction the side walls need not be set up to their final position before the raising of the end wall, in fact ease in erecting the carton will be experienced if when the side walls are brought to a partial erected position the end wall is likewise actuated and both the side walls and outer end wall member brought to a final position simultaneously.

The foregoing description dealt with a carton having side and end walls each of an inner and an outer wall member of substantially equal height whereby the resulting carton, as illustrated in Fig. 2, has walls of equal thickness throughout their height. The carton illustrated in Figs. 7, 8 and 9 is formed from a blank quite similar to that illustrated in Fig. 1 but provides a carton having a shoulder or step on the inner side of its walls. Accordingly, the side wall extensions are provided with the top wall panel 31 intermediate the height of the inner wall panel 38. To effect this the shoulder or top wall panel 88 is defined by score or fold lines 89 and 90 thereby providing a panel 91 between the score or fold line 89 and the outer wall top score or fold line 32 which forms the upper portion of the side wall inner wall member. A panel 92 is provided between the score or fold line 90 and the inner wall member score or fold line 34 which forms the balance or lower portion of the side wall inner wall member. -In the manufacture of this blank and knocked-down carton a'further modification occurs in that the panel 9| is provided with adhesive wherefore it is attached to the glue flap 40 and through the said glue flap with the outer wall member. v

The end wall extensions are likewise modified by lowering the top wall panel I6 and providing the panel 33 defined between score or fold lines 94 and 95. This construction results in a panel Ii between the score or fold line 94 and the score or fold line II at the top of the end wall outer wall member. A further panel 91 is provided between the score or fold line '95 and the score or me line 14 at the bottom of the end wall inner tively, behind the side wall shoulders.

The blank of Figs. 7, 8 and 9 is shipped to the user in substantially the same condition as that of Figs. 1, 2 and 3 and the erection thereof follows substantially the same steps. As illustrated in Fig. 9 the hollow portion of the side walls may have its scores broken before setting the same up to their normal operative positions and illustrated at I00 and "II in phantom lines.

The modification illustrated in Figs. 10 and 11 is quite similar to that illustrated in Fig. '7 except that the step is placed on the outside of the carton instead of on the inside thereof. To accomplish this the inner wall member panel, as illustrated in Fig. 1, is left its width while the outer wall member is made up of two panel portions, one of the two and H33 separated from one another by panel portion I04 which is defined by the fold or score lines I05 and I 06. A further modification occurs in the formation of the side extension in that the gluefiap 40 is shortened to crease with the width of the outer wall member panel I02. The end wall braces may be left to have the same contour as that of Figs. 1 and '7 and is so illustrated in connection with side wall extension 3| of Fig. 10. The braces as illustrated in connection with side extension 30 of Fig. 10 shows the lateral brace panel I0'I as at the height of the outer wall lower portion and will therefore extend intermediate the heightof the end wall inner and outer wall members as clearly illustrated in the right hand half of Fig. 12. It should be noted, however, that these braces may be formed to be the same at all four corners of the blank or they may be used as illustrated, one

having a transverse brace at the lower end thereof with a second transverse brace either at the top or intermediate the top and bottom. The end wall extensions of this modification in Fig. 10

- are identical with that of Fig. 1.

The blank of Fig. 10 is shipped to the user in substantially the same condition as that of Figs. 1 and 7 and as illustrated in Figs. 3 and 9, and this blank is set up in substantially the same manner.

The resulting carton, however, has end walls of uniform thickness throughout their. height while the side walls are thicker at their lower portions than at their upper portions with the step exteriorly of the carton sides. This construction results in the end wall top wall members having a portion thereof extending over the step of the side walls and this extension provides an ideal lock for looking to the carton a cover.

The cover for use with the carton of Fig. 11 is illustrated in Figs. 13 and 14 and the carton and cover are illustrated in locked position in Fig. 12. The cover is formed from a single blank having a body portion I08 the opposite ends of which are similarly subdivided by score or fold lines I09, IIO, III and H2 to provide on the body portion panels II3, III, H5 and H6. The said panels are folded to be normal to one another withthe panel IIG acting as a glue fiap for attaching the rectangular tube resulting from the folding of the panels, to the cover I08. It will be noted that the panels Ill and I I6 are shorter than the panels III and H5 thereby resulting in tongues Ill and I I8 at the ends of the tubes. It will also be noted that the said tongues extend from the inner wall accuse 7 oi'said tube. Iheremltingeoverisasillustrated inl'ig. libeingshiwedtotheuserwiththetimes flattened inwardly or the cover body portion lill.

In order tor the user to apply the lid or cover to the carton the tubes are bent on their score or told lines to be normal to the said'body portion I". This results in the tongues H1 and H8 having provided between them and the body portion a space H! which is substantially equal to the thickness of the board from which the carton of Fig. 11 is formed. The lid is applied by inserting the projecting portions of the end walls top members beneath the fingers H1 and H8 at one side oi the lid or cover and slightly upwardly bending or raising the other side the cover as illustrated most clearly in Fig. 11. The upwardly raised portion of the cover or lid is then lowered to bring the body portion 01' the cover against the end walls top wall members 18. As the fingers at the free end of the cover or lid engage the projections of the end wall top members they are pressed inwardly until they are beneath said projections whereupon they spring to their normal position beneath said projections and thereby lock the cover in position. This is, illustrated clearly in Fig. 12 where it discloses the fingers i l1 and I I8 01' the cover as beneath the end walls top wall projections.

What is claimed is:

1. In a carton or the clam described formed iromasingleblankcomprisingabasemember. side walls formed from extensions r-rom two opposite sides oi said base member and each including an outer wall member and an inner wall member one or which wall members is integrally hingedly connected to the base member and which wall members are spaced from one another for at least a portion or their height upwardly from the base member, a top wall member between the inner and outer wall members and having at lea-t one d e thereof integrally hingedly connected with the opeda oioneotsaidinnerandouterwall members and the top wall member having its opposite edge hingedly connected to the remaining 0! said inner and outer wall members and a bottom wall member having one or its edges integrally and hingedly connected to the one or said inner andouter wall members free or the base member, and said bottom wall member having a glue flap extending from its other edge permanently secured to the one or said inner and outer ,wall members hingedly connected to the base member, whereby said wall members may be iolded flat on one another to be erected normal 'The remaining modification illustrated in Figs.

15 and 16 is directed to a carton in which the side walls are provided with a step or shoulder interiorly of the carton, with, however, the end walls of double thickness instead of appreciable width. In this construction the end walls merely consist of an inner and an outer wall member with no top wall therebetween and the vertical and transverse braces of the construction heretofore described are eliminated. Accordingly, the end wall extension of Fig. 15 consists essentially of panels I20 and lil divided from one another by a score or fold line I22. The panel I20 constitutes the end wall outer wall member while the panel l2l constitutes the inner wall member and in order to lock the said wall members in operative positions the said inner wall member is provided with downwardiy projecting lugs I23 and I24 to engage behind the side wall shoulder and is further provided with laterally projecting lugs I25 and I26 to engage behind the lower portion or the inner wall member.

The blank of Fig. 15 is shippedto the user in the same manner as the blanks heretofore described and the set up is substantially the same.

It is some times desirable to have the inner surface of the set up carton or box part (lid) the same as the outer surface particularly when printed. To accomplish this the inner wall member III may have hingedly connected thereto as by a score or told line I21 a panel I28 01 an area substantially equal to the carton base panel 25. To assist in retaining the extension I28 in position, it has projecting from its sides locking tongues I29 and III each adapted to enter a similar slot I3 I, see Fig. 16, formed by a cut in in the inner wall member lower portion 92.

From the foregoing it will be noted that each or the modifications of the present invention is basically the same, each having side walls of appreciable width for at least a portion of their height and with the said side wall free of the bottom or base 01' the carton. By this construction the objects initially set forth are attained with a resultant carton having greater ease in erection and considerably greater rigidity and strength in the erected carton.

to one another prior to the positioning oi. the side wall normal to the base member, walls from the remaining edges or the bottom member, and cooperating means on said side walls and end walls for locking same in erected positions.

2. In a carton of the class described formed from a single blank comprising a base member, side walls formed from extensions from two opposite sides of said base member and each including an outer wall member and an inner wall member one of which wall members is integrally hingedly connected to the base member and which wall members are spaced from one another for at least a portion of their height upwardly from the base member. a top wall member between the inner and outer wall members and having at least one edge thereof integrally hingedly connected with the top edge or one of said inner and outer wall members and the top wall member having its opposite edge hingedly connected to the remaining of said inner and outer wall members and a bottom wall member having one of its edges integrally and hingedly connected to the one of said inner and outer wall members free of the base member, and said bottom wall member having a glue flap extending from its other edge permanently secured to the one of said inner and outer wall members hingedly connected to the base member, whereby said wall members may be folded flat on one another to be erected normal to one another prior to the positioning of the side wall normal to the base member, walls formed from extensions from the remaining edges of the base member and each including an outer wall member, an inner wall member and a top wall member, and cooperating means on said side walls inner wall members and said end walls inner wall members for locking the walls in erected positions.

3. In a carton of the class described formed from a single blank comprising a base member, side walls formed from extensions from two opposite sides of said base member and each including an outer wall member and an inner wall member one 01' which wall members is integrally hingedly connected to the base member and which wall membersare spaced from one another for atleast a portion 01' their height upwardly from the base member, a top wall member between the assaiae integrally and hingedly connected to the one of said inner and outer wall members free of the base member, and said bottom wall member having a glue flap extending from its other edge permanently secured to the one of said inner and outer wall members hingedly connected to the base member, whereby said wall members may be folded flat on one another to be erected normal to one another prior to the positioning of the side wall normal to the base member, end walls formed from extensions from the remaining edges of the base member and each including an outer hingedly connected to the base member and which wall members are spaced from one another for at least a portion of their height upwardly from the base member, a top wall member bewall member, an inner wall member and a top 20 wall member, means carried by said side walls inner and outer wall members adapted to be disposed between the end walls inner and outer wall members for bracing said end walls inner and outer wall members, and cooperating means on said side walls inner wall members and said end walls inner wall members for locking the walls in erected positions.

4. In a carton of the class described formed from a single blank comprising a base member, side walls formed from extensions from two opposite sides of said base member and each in cluding an outer wall member and an inner wall member one of which wall members is integrally hingedly connected to the base member and which wall members are spaced from one another -for at least a portion of their height upwardly from the base member, a top wall member between the inner and outer wall members and having at least one edge thereof integrally hingedly connected with the top edge of one of said inner and outer wall members and the top wall member having its opposite edge hingedly connected to the remaining of said inner and outer wall members and a bottom wall member having one of its edges integrally and hingedly connected to the one of said inner and outer wall members free of the base member, and said bottom wall member having a glue flap extending from its other edge permanently secured to the one of said inner and outer wall members hingedly connected to the base member, whereby said wall members may be folded flat on one another to be erected normal to one another prior to the positioning of the side wall normal to the base member, end walls formed from extensions from the remaining edges of the base member and each including an outer wall member, an irmer wall member and a top wall member, extensions from the ends of said side walls outer, top, inner and 6 bottom wall members hingedly connected to one another to form box-like braces disposed between the end walls inner and outer wall members and beneath the end walls top wall members for vertically and transversely bracing said end walls inner, outer and top wall members, and cooperating means on said side walls inner wall members and said end wall inner wall members for locking the walls in erected positions.

5. In a carton of the class described formed from a single blank comprising a base member, side walls formed from extensions from two opposite sides of said base member and each including an outer wall member and an inner wall member one of which wall members is integrally 1 tween the inner and outer wall members and having at least one edge thereof integrally hingedly connected with the top edge of one of said inner and outer wall members and the top wall member having its opposite edge hingedly connected to the remaining of said inner and outer wall members and a bottom wall member having one of its edges integrally and hingedly connected to the one of said inner and outer wall members free of the base member, and said bottom wall member having a glue flap extending from itsfother edge permanently secured to the one of said inner and outer wall members hingedly connected to the base member, end walls formed from extensions from the remaining edges of the base member and each including an outer wall member, an inner wall member and a top wall member, extensions from the ends oi said side walls top, inner and bottom wall members and glue flaps hingedly connected to one another to form box-like braces disposed between the end walls inner and outer wall members beneath the end walls top wall members for vertically and transversely bracing said end walls inner, outer and top wall members, corner pieces between the side walls outer members and the end walls outer members each adapted to be folded on itself and disposed between the box-like braces and end wall members and said corner pieces each being secured to the glue flap extension of the side wall adjacent thereto, and cooperating means on said side walls inner wall members and said end walls inner wall members for locking the walls in erected positions.

6. In a carton of the class described formed from a single blank comprising a base member, a side wall formed from an extension integral with and from one edge of the base member and said side having a generally rectangular tubular cross section, including an outer, top, inner and bottom wall member, each of said side wall members being successively, integrally, hingedly connected to one another, a glue flap integrally, hingedly connected to the free end of the bottom wall member and permanently adhesivehr attached to the inner surface of said outer wall member, whereby said wall members may be folded flat on one another to be erected normal to one another prior to the positioning of the side wall normal to the base member, a second- 0 from a single blank comprising a base member,

side walls each formed from an extension integral with and from opposite edges of the base member and each side wall having a generally rectangular tubular cross section, including an outer, top, inner and bottom wall member, each of said walls having each of its said wall members successively, integrally, hingedly, connected to one another, a glue flap integrally, hingedly, connected to the free end of the bottom wall member and permanently adhesively attached to the inner surface of its outer wall member, whereby said wall members may be folded flat on one another to be erected normal to one another prior to the posi-- tioning of the side wall normal to the base member, end walls from the remaining edges of the base member, and means for locking the walls in erected tions.

-8.Ina:e?tonof theclassdescribed formed mm a single blank comprising a base member, side walls each formed from an extension integral with and upon opposite edges of the base member and each side wall having a generally rectangular tubular cross section, including an outer, top, inner and bottom wall member, each of said walis having each of its said wall members successively, integrally, hingedly connected to one another, a glue flap integrally, hingedly, connected to the free end of the bottom wall member and permanently adhesively attached to the inner surface of its outer wall member, whereby said wail members may be folded flat on one another to be erected normal to one another prior to the positioning of the side wall normal to the base member, end walls formed from extensions from the remaining edges of the base member and each including an outer wall member, an inner wall member and a top wall member, and means for locking the walls in erected positions.

N 9. In a carton of the class described formed from a single blank comprising a base member, side walls each formed form an extension integral with and from opposite edges of the base member and each side wall having a generally rectangular tubular cross section, including an outer, top, inner and bottom wall member, each of said walls having each of its said wall members successively, integrally, hingedly, connected to one another, a glue flap integrally, hingedly, connected to the free end of the bottom wall member and permanently adhesively attached to the inner surface of its outer wall member, whereby said wall members may be folded flat on one another to be erected normal to one another prior to the positioning of the side wall normal to the base member, end walls formed from extensions from the remaining edges of the base member and each includingan outer wall member, an inner wall member and a top wall member, extensions from the ends of said side walls outer, top, inner and bottom wall members hingedly connected to one another to form box-like braces disposed between the end walls inner and outer wall members beneath the end walls top members for vertically and transversely bracing said 'endwalls inner, outer andtop wall members, and means for locking the walls in erected positions.

"10, In a carton of the class described formed from a single blank comprising a base member,

' 12 sidewallseachformediromanextensionintegral with and from opposite edges of the base member and each side walljiaving a generally rectangular tubular cross section, including an outer, top, inner and bottom wall member, each of said walls having each of its said wall members successively, integrally, hingedly, connected to one another, a glue flap integrally, hingedly, connected to the free end of the bottom wall member and permanently adhesively attached to the inner surface of'its outer wall member, whereby said wall members may be folded flat on one another to be erectednormal to one another prior to the positioning of the side walls normal to the base member, end walls formed from extensions from the remaining edges of the base member and each including an outer wall member, an inner wall member and a top wall member, corner pieces between the side walls outer wall members and end walls outer wall members each adapted to be folded on itself, extensions from the ends of said side walls top, inner and bottom wall members hingedly connected to one another through a glue flap hingedly connected to and I projecting from the bottom wall member extension and secured to its adjacent corner piece to thereby form end wall braces of generally rectangular tubular cross section adapted to be dispomd between the end walls inner and outer wall members beneath the end wall top wall members to vertically and transversely brace the same, and means for locking the walls in erected positions.

WIILIAM P. FRANKENSTEIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PA'I'ENTS Number Name Date Re. 21,15 8 Frankenstein July 25, 1939 1,262,508 Kaufman Apr. 9, 1918 1,310,006 Diamond July 15, 1919 2,116,513 Frankenstein May 10, 1938 2,313,376 Ullman i Mar. 9, 1943 2,388,243 Arneson Nov. 6, 1945 2,397,934 Frankenstein Apr. 9, 1946 2,444,497 Clarke July 6, 1948 FOREIGN PATENTS Number Country Date 739,590 France Nov. 3, 1932 

